Speed-governor.



I H T. .HERR.

SPEED GOVERNOR APPLICATION FILED MAR. 27, 1913 Lws mfio Patented Nov14,1916,

WVENTOR a. mm,

7 4s ATTORNEY IN FACT pnrap saraaas canton.

, HERBERT T. HERB, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR, BY MESNEASSIGN- MENTS, TO THE WESTINGHOUSE MACHINE COMPANY, OF EAST PITTSBURGH,PENN- SYLVANIA, A CORPORATION OF PENNSYLVANIA.

SPEED-GOVERNOR.

Application filed March 27, 1913.

eration of the inlet valve or valve mechanism of an engine or otherfluid operated apparatus through the agency of a pressure responsivemotor.

A further object is to produce a speed responsive governing dev1ce wh1chforms a part of or is included in a fluid circulatory system andcontrols the delivery of fluid to the system and the pressure of thefluid within the system.

Other objects and advantages as well as the novel details ofconstruction will appear hereinafter, it being understood that changesin proportion and minor details of construction may be resorted towithout departing from the spirit of the invention or sacrificing any ofits advantages.

The drawing accompanying and forming a part hereof is a sectional viewof an enibodiment of my inventionand discloses a speed responsivedevice, capable of being driven by the apparatus to be governed, whichcontrols the delivery of fluid from a source of fluid under pressure toa pressure chamber from which fluid is delivered to the motor whichcontrols the operation of the inlet valve or valves of the apparatus tobe governed. The arrangement of the governing device is such that theinlet valve or valves of the apparatus to be governed will be opened asthe speed of the apparatus decreases in response to an increase in loadand Specification of Letters Patent.

. The spindle element 4 is lngs l0 and 11, the bearing 11 being con-'Patented Nov. 114i, rare. Serial No. 757,126.

not longitudinal movement; the other desig nated by the numeral 5 havingboth longitudinal and rotatable movement. The part 4 is connected to thepart 5 by links 6 and 6', 7 and 7 and the governor weights 8 and 9.

rotatable in bearnected to a perforate web governor casing 13. element 4is in the form of a housing 14: which constitutes a chamber forasuitable fluid, as for example oil, and communicating with this chamberis a perforate tube 15 exhausting into a chamber 16 communicating with apipe 17 which may lead to a valve operating mechanism, as for example,an oil relay (not shown). One 'end of the tube 15 1s conical and on theend of the conical portion of the tube is a spring seat 18 opposite asimilar spring seat 19 between which spring seats, is a coil spring 20.In the upper portion of the element 4: is a bore or channel 21 in whichis a ported bush 22. lVithin the bore 21 and connected to the element 5is a ported valve 23. This valve 12 secured in the has connected to it aconical end 21L which bears upon the spring seat 19.

By reference to the figure it will be observed that the spindle element5, the valve 23 and the removable end 24 are tubular, the end 24 beingpartitioned from the valve 23 by plug 25. At the upper end of thespindle element 5 are inlet openings 26 which communicate with asuitable source of oil supply through a pipe 27 in which a valve 28 isconventionally shown. Oil may enter the hollow element 5 and pass intothe valve 23 and for lubricating purposes a portion of it may passthrough the ports 29 into the channels 30 so as to lubricate the bearing11.

It is to be understood that the throttle valve of a steam engine,particularly for turbines,-is normally open so that the hand valve inthe steam supply line may be used for starting.

Assuming that the governor is connected up to a turbine when steam isadmitted to the turbine and the turbine starts, the lay shaft 1 willstart to turn imparting motion through the gear 3 to the governorspindle. The oil admitted through the pipe 27 into Part of the spindle ythe spindle element will escape through the ports 31 and 32 as soon asthe governor weights 8 and 9 move out. The oil will pass into thechamber 33 through chamber let, pipe 15, chamber 16, through pipe 17 tothe oil relay to close the inlet valve a sufficient amount to bring theengine to the proper speed. If the load becomes light, the governorballs 8 and 9 will again fly out and admit more oil through the ports31, 32 and 33 into chamber 14, pipe 15, chamber 16, and pipe 17 to closethe inlet valve still further. Should the load become heavy, thegovernor weights 8 and 9 will move in toward the spindle and under theaction of the spring 20 the chamber l l will be placed in communicationwith the port 34 through the ports 35 and 36 because the hollow end 24is provided with openings 37 thus oil will be exhausted from the chamber14 into the casing 13 where it may be returned to the oil system or bedrawn off through the outlet 38.

It will be observed that the port 34: ex-

hausts into the casing 13 at a point where the teeth of the gears 2 and3 mesh so that said gears will be lubricated. For convenience, the lowerelement 4 of the spindle is made of two parts so that the gear 3 is asplit gear which, may be held together by the taper-bolts 39 and thenuts 40 whereby the lower element 4 of the spindle may be taken apartfor the purpose of inspection and repairs to the spring and itscomplementary parts. The spindle element at is shown as being providedwith a gear 41 meshing with a complementary gear 42, these gears 41 and42 constituting the low pressure oil pump for a lubricating system whichdoes not form a part of this inven-' tion.

In accordance with the provisions of the patent statutes, I havedescribed the principle of operation of my invention together, with thedevice which I now consider to represent the best embodiment thereof,but I desire to have it understood that the device shown is onlyillustrative and that the invention can be carried out in other ways.

Having thus described my invention, what I claim is:

1. In a governor, a spindle comprising telescopic parts, one of which isadapted to have rotatable and longitudinal movement imparted to it, andthe other of which is adapted to have rotative movement only imparted toit, one of said parts having ports adapted to register with the ports ofthe other part, and governor weights for causing said ports to register.

2. An organized apparatus comprising a liquid circulatory system, arotatable and longitudinally shiftable hollow spindle included in saidsystem and controlling the delivery of fluid to and the discharge offluid from a pressure chamber included in said system, a speedresponsive means for controlling the operation of said spindle.

3. A governing device comprising an or ganized apparatus including aliquid ci-rculatory system having a pressure chamber to which liquid isdelivered from a source of supply and from which it is delivered througha delivery port, a spindle for controlling the delivery of liquid tosaid chamber and the discharge of liquid through a" relief portcommunicating with said chamber, means driven by the apparatus to begoverned for rotating said spindle and centrifugally controlled'devicedriven by said spindle for actuating the spindle to control the liquiddelivered to the chamber.

4. A governing device comprising an organized apparatus including aliquid cirport and means responsive to thespeed of the device to begoverned for controlling the delivery of liquid to said chamber and thedischarge of liquid through a relief port with which said chamber isprovided.

5. A governing device comprising an organized apparatus including aliquid circulatory system having a pressure chamber to which liquid isdelivered from a source of supply and from which it is delivered througha delivery port, and speed responsive means subjected to the pressurewithin said chamber for controlling the deliveryof liquid to saidchamber and the discharge of liquid through a relief port with whichsaid chamber is provided.

6. A governing device comprising an or-' from a source of supply. andfrom which it is delivered through a continually open delivery port,means subjected to the pressure within said chamber for controlling thedelivery of liquid to said chamber and speed responsive means foractuating said last mentioned means.

7. An organized apparatus comprising a pressure chamber to which liquidis delivered through a rotatable spindle, a port controlled by saidspindle through which the liquid is delivered, a relief port controlledby said spindle through which liquid is discharged, centrifugallyactuated balls mounted on said spindle for controlling thev operation ofthe spindle, gearing for driving said spindle and a lubricating passagefor said gearing communicating with said delivery port.

8. A governing device included in a liquid circulatory system,comprising a pressure chamber, to which liquid is delivered from asource of supply and from.-

which it is discharged and means responsive to the speed of the deviceto be governed for controlling the delivery of liquid to said chamberand the discharge of liquid from the chamber through a relief port,

with which the chamber is connected.

9. A governing device comprising a casing having an inlet, a delivery,and a dis charge port means subjected to the pressure Within said casingfor controlling communication between the inlet and the delivery portsand between the delivery'and the discharge 7 ports centrifugallyactuated means for controlling the operation of said first mentionedmeans, and means for rotating said casing and said centrifugallyactuated means.

10. In combination with a driving gear and a driven gear intermeshingtherewith, centrifugally controlled means for delivering lubricant tosa1 l gears.

In testimony whereof I have hereunto subscribed my name this 24th day ofMarch,

HERBERT T. HERB. Witnesses C. WV. MCGI-IEE,

ADA Bonus.

